F05C 2251/048
Heat transfer
F05C2251/048 (Heat transfer) appears on 118 US grants and 145 published applications in this corpus.
Search patents in F05C- Granted patents
- 118
- Published applications
- 145
- Assignees
- 65
- Inventors
- 334
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 3 |
| 2006 | 0 | 1 |
| 2007 | 0 | 5 |
| 2008 | 0 | 3 |
| 2009 | 3 | 1 |
| 2010 | 3 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 7 |
| 2013 | 0 | 9 |
| 2014 | 4 | 8 |
| 2015 | 5 | 9 |
| 2016 | 4 | 10 |
| 2017 | 10 | 19 |
| 2018 | 11 | 12 |
| 2019 | 14 | 11 |
| 2020 | 14 | 11 |
| 2021 | 6 | 7 |
| 2022 | 6 | 5 |
| 2023 | 2 | 7 |
| 2024 | 5 | 0 |
| 2025 | 4 | 4 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Vacuum pump and vacuum pump rotor blade25 Feb 2025US 12,234,828 B2Edwards Japan Limited
- Internal combustion engine18 Feb 2025US 12,228,091 B1
- Insulation layer on steel pistons8 Oct 2024US 12,110,837 B2Tenneco Inc.
- Vacuum pump17 Sep 2026US 2026/0275984 A1
- Coating system22 Jan 2026US 2026/0022678 A1Volvo Truck Corporation
- Internal combustion engine8 Jan 2026US 2026/0009346 A1
- Thermal Barriers For Compressor Discharge Chambers or Cavities28 Aug 2025US 2025/0271185 A1Copeland Corporation
- Internal combustion engine15 May 2025US 2025/0154885 A1
Most cited
By later US patents
- Combustion chamber components for internal combustion engines60US 4,495,907 ACummins Engine Company, Inc. · 1985
- Heat-insulating layer to prevent temperature drop of combustion gas in internal combustion engine49US 4,254,621 ANissan Motor Co., Ltd. · 1981
- Oil cooling device44US 5,351,664 AKohler Co. · 1994
- Thermal ignition combustion system37US 4,738,227 AAdiabatics, Inc. · 1988
- Thin thermal barrier coating for engines27US 4,852,542 AAdiabatics, Inc. · 1989